c++ / mojo changes for 'external window mode'

services/ui/demo/window_tree_data.cc

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "services/ui/demo/window_tree_data.h"
 
 #include "base/time/time.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkColor.h"
@@ skipping 55 matching lines @@
   return window_tree_host_->window()->children()[0];
 }
 
 void WindowTreeData::Init(
     std::unique_ptr<aura::WindowTreeHostMus> window_tree_host) {
   window_tree_host->InitHost();
   window_tree_host->Show();
   // Take ownership of the WTH.
   window_tree_host_ = std::move(window_tree_host);
 
+  InitImpl(window_tree_host_.get());
+}
+
+void WindowTreeData::InitImpl(aura::WindowTreeHostMus* window_tree_host) {

[fwang, 2017/03/07 09:21:25]

Let's keep this in one function and only do the above when window_tree_host  is
nonnull

[tonikitoo, 2017/03/07 14:00:49]

Done.

   // Initialize the window for the bitmap.
   window_delegate_ = new aura_extra::ImageWindowDelegate();
   aura::Window* root_window = window_tree_host_->window();
   aura::Window* bitmap_window = new aura::Window(window_delegate_);
   bitmap_window->Init(LAYER_TEXTURED);
   bitmap_window->SetBounds(gfx::Rect(root_window->bounds().size()));
   bitmap_window->Show();
   bitmap_window->SetName("Bitmap");
   root_window->AddChild(bitmap_window);
 
@@ skipping 26 matching lines @@
   gfx::ImageSkiaRep image_skia_rep(bitmap, 1);
   gfx::ImageSkia image_skia(image_skia_rep);
   gfx::Image image(image_skia);
 
   window_delegate_->SetImage(image);
   bitmap_window()->SchedulePaintInRect(gfx::Rect(bounds.size()));
 }
 
 }  // namespace demo
 }  // namespace ui